American Idol: Some Top 24 contestants announced Tuesday

Some of this season's top 24 "American Idol" semifinalists will be announced Tuesday, Fox executives said in a statement today.

Tuesday's show airs 8-10 p.m. and features the final individual performances in Hollywood.

The move is a major format change for the reality TV competition, which in the past has announced all the semifinalists at once. This year, the "big reveal" will be spread across two episodes rather than one.

After Tuesday's show, the remaining semifinalists will be announced on Wednesday's episode of "Idol," which airs 9-10 p.m.